Tough question this time!
I am all in support of adding a Millenary to your octagons. You have some incredible 8-sided bezel pieces to choose from, and the oval Maserati Dual Time would be a wonderful compliment.
That said, I just replied in your Montoya post about how that watch was the springboard for AP's aggressive Offshore designs. None went further than the Survivor in this regard. So if I had a chance to grab a nice Survivor over the Maserati right now, I would suggest doing so to you. The Maseratis do come up now and then, and Survivors too, but adding the latter will really cement your Offshore collection. There is nothing beyond it and the others you would "need".
Later I'll see if I can add some photos for you.